: from panama, the story of a tug-of-war in the rain forest between a canadian mining company and the local community. >> is building what would be one of the biggest compromises in the world. right in the middle of the rain forest. home to thousands of animal and plant species. some of them endangered. >> ifill: and we close with a mystery about an electric guitar that just might be the same one bob dylan played at the 1965 newport folk festival. it's rock and roll history. we'd love to see his guitar to either learn if we made a mistake and how we made the mistake or if we have the real thing. >> ifill: that's all ahead on tonight's newshour. major funding for the pbs newshour has been provided by: >> bnsf railway. >> and by the alfred p. sloan foundation. supporting science, technology, and improved economic performance and financial literacy in the 21st century. and with the ongoing support of these institutions and foundations. and... this program was made possible by the corporation for public broadcasting. and by contributions to your pbs station from viewers like you.